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Music theorist Steven Rings argues that such sonic imperfections are central to understanding Dylans songs and their appeal

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The researchers obtained airway stem cells from human donors to produce a 3D tissue model of human bronchial epithelium

Liquid chromatography coupled with mass spectrometry revealed shorter acyl chains in ceramides, and an increased proportion of sphingosine and 6-hydroxysphingosine ceramides (with C4 trans -double bond) over dihydrosphingosine and phytosphingosine ceramides in smokers, suggesting altered desaturase 1 activity